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Investigators from University of Technology Release New Data on Purification Technology (Mixed matrix membranes of Pebax-1657 loaded with 4A zeolite...

July 22, 2014



Investigators from University of Technology Release New Data on Purification Technology (Mixed matrix membranes of Pebax-1657 loaded with 4A zeolite for gaseous separations)

By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Purification Technology. According to news reporting from Skudai, Malaysia, by VerticalNews journalists, research stated, "Mixed matrix membranes (MMMs) made from selective inorganic fillers and polymers have received extensive attention in the field of gas separation. In this work, poly(ether-block-amide), (Pebax)/zeolite 4A MMMs were prepared using ethanol/water as solvent mixture."

The news correspondents obtained a quote from the research from the University of Technology, "The concentration of zeolite 4A in membrane was varied from 5 to 30 wt.% of the polymer. The membranes were characterized by SEM, FTIR and XRD to study the morphologies, the effect of zeolite 4A incorporation on intermolecular interactions and degree of crystallinity, respectively. The pure gas permeabilities were recorded at the ambient temperature, using an indigenously built high-pressure gas separation manifold. The permeabilities of Pebax-1657/zeolite 4A membranes were enhanced from 71.4 to 155.7 Barrers for CO2, 2.2-19.6 Barrers for CH4, 5.8-17.9 Barrers O-2 and 1.4-12.0 Barrers for N-2. The ideal selectivity of 10 wt.% zeolite 4A MMM enhanced from 54.1 to 94.2 for the CO2/N-2 gas pair with increase in feed pressure from 5 to 25 kg/cm(2), whereas the corresponding values for CO2/CH4 and O-2/N-2 were found to rise from 26.4 to 41.3 and 4.3 to 4.9, respectively."

According to the news reporters, the research concluded: "The Pebax/zeolite 4A membranes thus provide a potentially promising means for separation of CO2/N-2, CO2/CH4, and enrichment of O-2 and N-2 from air."

For more information on this research see: Mixed matrix membranes of Pebax-1657 loaded with 4A zeolite for gaseous separations. Separation and Purification Technology, 2014;129():1-8. Separation and Purification Technology can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Separation and Purification Technology - www.elsevier.com/wps/product/cws_home/600251)

Our news journalists report that additional information may be obtained by contacting R.S. Murali, Univ Teknol Malaysia, Adv Membrane Technol Res Center AMTEC, Skudai 81310, Johor Bahru, Malaysia. Additional authors for this research include A.F. Ismail, M.A. Rahman and S. Sridhar.

Keywords for this news article include: Asia, Skudai, Malaysia, Purification Technology

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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